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+/* vi:set ts=8 sts=4 sw=4:
+ *
+ * VIM - Vi IMproved by Bram Moolenaar
+ *
+ * Do ":help uganda" in Vim to read copying and usage conditions.
+ * Do ":help credits" in Vim to see a list of people who contributed.
+ */
+
+/*
+ * Arabic characters are catagorized into following types:
+ *
+ * Isolated - iso-8859-6 form char denoted with a_*
+ * Initial - unicode form-B start char denoted with a_i_*
+ * Medial - unicode form-B middle char denoted with a_m_*
+ * Final - unicode form-B final char denoted with a_f_*
+ * Stand-Alone - unicode form-B isolated char denoted with a_s_* (NOT USED)
+ *
+ * --
+ *
+ * Author: Nadim Shaikli & Isam Bayazidi
+ * - (based on Unicode)
+ *
+ */
+
+/*
+ * Arabic ISO-10646-1 character set definition
+ */
+
+/*
+ * Arabic ISO-8859-6 (subset of 10646; 0600 - 06FF)
+ */
+#define a_COMMA 0x060C
+#define a_SEMICOLON 0x061B
+#define a_QUESTION 0x061F
+#define a_HAMZA 0x0621
+#define a_ALEF_MADDA 0x0622
+#define a_ALEF_HAMZA_ABOVE 0x0623
+#define a_WAW_HAMZA 0x0624
+#define a_ALEF_HAMZA_BELOW 0x0625
+#define a_YEH_HAMZA 0x0626
+#define a_ALEF 0x0627
+#define a_BEH 0x0628
+#define a_TEH_MARBUTA 0x0629
+#define a_TEH 0x062a
+#define a_THEH 0x062b
+#define a_JEEM 0x062c
+#define a_HAH 0x062d
+#define a_KHAH 0x062e
+#define a_DAL 0x062f
+#define a_THAL 0x0630
+#define a_REH 0x0631
+#define a_ZAIN 0x0632
+#define a_SEEN 0x0633
+#define a_SHEEN 0x0634
+#define a_SAD 0x0635
+#define a_DAD 0x0636
+#define a_TAH 0x0637
+#define a_ZAH 0x0638
+#define a_AIN 0x0639
+#define a_GHAIN 0x063a
+#define a_TATWEEL 0x0640
+#define a_FEH 0x0641
+#define a_QAF 0x0642
+#define a_KAF 0x0643
+#define a_LAM 0x0644
+#define a_MEEM 0x0645
+#define a_NOON 0x0646
+#define a_HEH 0x0647
+#define a_WAW 0x0648
+#define a_ALEF_MAKSURA 0x0649
+#define a_YEH 0x064a
+
+#define a_FATHATAN 0x064b
+#define a_DAMMATAN 0x064c
+#define a_KASRATAN 0x064d
+#define a_FATHA 0x064e
+#define a_DAMMA 0x064f
+#define a_KASRA 0x0650
+#define a_SHADDA 0x0651
+#define a_SUKUN 0x0652
+
+#define a_MADDA_ABOVE 0x0653
+#define a_HAMZA_ABOVE 0x0654
+#define a_HAMZA_BELOW 0x0655
+
+#define a_ZERO 0x0660
+#define a_ONE 0x0661
+#define a_TWO 0x0662
+#define a_THREE 0x0663
+#define a_FOUR 0x0664
+#define a_FIVE 0x0665
+#define a_SIX 0x0666
+#define a_SEVEN 0x0667
+#define a_EIGHT 0x0668
+#define a_NINE 0x0669
+#define a_PERCENT 0x066a
+#define a_DECIMAL 0x066b
+#define a_THOUSANDS 0x066c
+#define a_STAR 0x066d
+#define a_MINI_ALEF 0x0670
+/* Rest of 8859-6 does not relate to Arabic */
+
+/*
+ * Arabic Presentation Form-B (subset of 10646; FE70 - FEFF)
+ *
+ * s -> isolated
+ * i -> initial
+ * m -> medial
+ * f -> final
+ *
+ */
+#define a_s_FATHATAN 0xfe70
+#define a_m_TATWEEL_FATHATAN 0xfe71
+#define a_s_DAMMATAN 0xfe72
+
+#define a_s_KASRATAN 0xfe74
+
+#define a_s_FATHA 0xfe76
+#define a_m_FATHA 0xfe77
+#define a_s_DAMMA 0xfe78
+#define a_m_DAMMA 0xfe79
+#define a_s_KASRA 0xfe7a
+#define a_m_KASRA 0xfe7b
+#define a_s_SHADDA 0xfe7c
+#define a_m_SHADDA 0xfe7d
+#define a_s_SUKUN 0xfe7e
+#define a_m_SUKUN 0xfe7f
+
+#define a_s_HAMZA 0xfe80
+#define a_s_ALEF_MADDA 0xfe81
+#define a_f_ALEF_MADDA 0xfe82
+#define a_s_ALEF_HAMZA_ABOVE 0xfe83
+#define a_f_ALEF_HAMZA_ABOVE 0xfe84
+#define a_s_WAW_HAMZA 0xfe85
+#define a_f_WAW_HAMZA 0xfe86
+#define a_s_ALEF_HAMZA_BELOW 0xfe87
+#define a_f_ALEF_HAMZA_BELOW 0xfe88
+#define a_s_YEH_HAMZA 0xfe89
+#define a_f_YEH_HAMZA 0xfe8a
+#define a_i_YEH_HAMZA 0xfe8b
+#define a_m_YEH_HAMZA 0xfe8c
+#define a_s_ALEF 0xfe8d
+#define a_f_ALEF 0xfe8e
+#define a_s_BEH 0xfe8f
+#define a_f_BEH 0xfe90
+#define a_i_BEH 0xfe91
+#define a_m_BEH 0xfe92
+#define a_s_TEH_MARBUTA 0xfe93
+#define a_f_TEH_MARBUTA 0xfe94
+#define a_s_TEH 0xfe95
+#define a_f_TEH 0xfe96
+#define a_i_TEH 0xfe97
+#define a_m_TEH 0xfe98
+#define a_s_THEH 0xfe99
+#define a_f_THEH 0xfe9a
+#define a_i_THEH 0xfe9b
+#define a_m_THEH 0xfe9c
+#define a_s_JEEM 0xfe9d
+#define a_f_JEEM 0xfe9e
+#define a_i_JEEM 0xfe9f
+#define a_m_JEEM 0xfea0
+#define a_s_HAH 0xfea1
+#define a_f_HAH 0xfea2
+#define a_i_HAH 0xfea3
+#define a_m_HAH 0xfea4
+#define a_s_KHAH 0xfea5
+#define a_f_KHAH 0xfea6
+#define a_i_KHAH 0xfea7
+#define a_m_KHAH 0xfea8
+#define a_s_DAL 0xfea9
+#define a_f_DAL 0xfeaa
+#define a_s_THAL 0xfeab
+#define a_f_THAL 0xfeac
+#define a_s_REH 0xfead
+#define a_f_REH 0xfeae
+#define a_s_ZAIN 0xfeaf
+#define a_f_ZAIN 0xfeb0
+#define a_s_SEEN 0xfeb1
+#define a_f_SEEN 0xfeb2
+#define a_i_SEEN 0xfeb3
+#define a_m_SEEN 0xfeb4
+#define a_s_SHEEN 0xfeb5
+#define a_f_SHEEN 0xfeb6
+#define a_i_SHEEN 0xfeb7
+#define a_m_SHEEN 0xfeb8
+#define a_s_SAD 0xfeb9
+#define a_f_SAD 0xfeba
+#define a_i_SAD 0xfebb
+#define a_m_SAD 0xfebc
+#define a_s_DAD 0xfebd
+#define a_f_DAD 0xfebe
+#define a_i_DAD 0xfebf
+#define a_m_DAD 0xfec0
+#define a_s_TAH 0xfec1
+#define a_f_TAH 0xfec2
+#define a_i_TAH 0xfec3
+#define a_m_TAH 0xfec4
+#define a_s_ZAH 0xfec5
+#define a_f_ZAH 0xfec6
+#define a_i_ZAH 0xfec7
+#define a_m_ZAH 0xfec8
+#define a_s_AIN 0xfec9
+#define a_f_AIN 0xfeca
+#define a_i_AIN 0xfecb
+#define a_m_AIN 0xfecc
+#define a_s_GHAIN 0xfecd
+#define a_f_GHAIN 0xfece
+#define a_i_GHAIN 0xfecf
+#define a_m_GHAIN 0xfed0
+#define a_s_FEH 0xfed1
+#define a_f_FEH 0xfed2
+#define a_i_FEH 0xfed3
+#define a_m_FEH 0xfed4
+#define a_s_QAF 0xfed5
+#define a_f_QAF 0xfed6
+#define a_i_QAF 0xfed7
+#define a_m_QAF 0xfed8
+#define a_s_KAF 0xfed9
+#define a_f_KAF 0xfeda
+#define a_i_KAF 0xfedb
+#define a_m_KAF 0xfedc
+#define a_s_LAM 0xfedd
+#define a_f_LAM 0xfede
+#define a_i_LAM 0xfedf
+#define a_m_LAM 0xfee0
+#define a_s_MEEM 0xfee1
+#define a_f_MEEM 0xfee2
+#define a_i_MEEM 0xfee3
+#define a_m_MEEM 0xfee4
+#define a_s_NOON 0xfee5
+#define a_f_NOON 0xfee6
+#define a_i_NOON 0xfee7
+#define a_m_NOON 0xfee8
+#define a_s_HEH 0xfee9
+#define a_f_HEH 0xfeea
+#define a_i_HEH 0xfeeb
+#define a_m_HEH 0xfeec
+#define a_s_WAW 0xfeed
+#define a_f_WAW 0xfeee
+#define a_s_ALEF_MAKSURA 0xfeef
+#define a_f_ALEF_MAKSURA 0xfef0
+#define a_s_YEH 0xfef1
+#define a_f_YEH 0xfef2
+#define a_i_YEH 0xfef3
+#define a_m_YEH 0xfef4
+#define a_s_LAM_ALEF_MADDA_ABOVE 0xfef5
+#define a_f_LAM_ALEF_MADDA_ABOVE 0xfef6
+#define a_s_LAM_ALEF_HAMZA_ABOVE 0xfef7
+#define a_f_LAM_ALEF_HAMZA_ABOVE 0xfef8
+#define a_s_LAM_ALEF_HAMZA_BELOW 0xfef9
+#define a_f_LAM_ALEF_HAMZA_BELOW 0xfefa
+#define a_s_LAM_ALEF 0xfefb
+#define a_f_LAM_ALEF 0xfefc
+
+#define a_BYTE_ORDER_MARK 0xfeff
+
+/* Range of Arabic characters that might be shaped. */
+#define ARABIC_CHAR(c) ((c) >= a_HAMZA && (c) <= a_MINI_ALEF)